Recent Progress of Layered Perovskite Solar Cells Incorporating Aromatic Spacers  

作　　者：Yuping Gao Xiyue Dong Yongsheng Liu 

机构地区：[1]The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials,Institute of Polymer Chemistry,College of Chemistry,Nankai University,Tianjin 300071,People’s Republic of China [2]Renewable Energy Conversion and Storage Center(RECAST),Nankai University,Tianjin 300071,People’s Republic of China

出　　处：《Nano-Micro Letters》2023年第10期163-181,共19页纳微快报（英文版）

基　　金：financially supported by National Natural Science Foundation of China (Grants Nos. 52273182, 21875122)。

摘　　要：Layered two dimensional(2D) or quasi-2D perovskites are emerging photovoltaic materials due to their superior environment and structure stability in comparison with their 3D counterparts. The typical 2D perovskites can be obtained by cutting 3D perovskites along < 100 > orientation by incorporation of bulky organic spacers, which play a key role in the performance of 2D perovskite solar cells(PSCs). Compared with aliphatic spacers, aromatic spacers with high dielectric constant have the potential to decrease the dielectric and quantum confinement effect of 2D perovskites, promote efficient charge transport and reduce the exciton binding energy, all of which are beneficial for the photovoltaic performance of 2D PSCs. In this review, we aim to provide useful guidelines for the design of aromatic spacers for 2D perovskites. We systematically reviewed the recent progress of aromatic spacers used in 2D PSCs. Finally, we propose the possible design strategies for aromatic spacers that may lead to more efficient and stable 2D PSCs.

关 键 词：Layered perovskite solar cells Aromatic spacers Quantum and dielectric confinement effects Charge transport Efficiency and stability 

分 类 号：TM914.4[电气工程—电力电子与电力传动]